If you can dream it, you can do it.
Problems are not stop signs, they are guidelines.
Do not weep do not wax indignant. Understand.
After a storm comes a calm.
Know or listen to those who know.
Be gentle to all and stern with yourself.
Who seeks shall find.
The secret of getting ahead is getting started.
Always desire to learn something useful.
If you think you can do it, you can.
I have taught history on the high school and college levels, and am or have been a lecturer at the Smithsonian, The National Institutes of Health, and numerous colleges and universities, mostly on science fiction and technology subjects.